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Full Discussion: include NULLs in line length check
Top Forums Shell Programming and Scripting include NULLs in line length check Post 302330229 by ironmix on Tuesday 30th of June 2009 02:18:14 PM
Old 06-30-2009
my point was that both your code and mine are not working. Let me try to explain my problem again. I have a fixed length file that I am reading every line and making sure every line is exactly 161 length. Problem is that some lines contain NULL characters (or low 'MAINFRAME' values). These are not space values.

For example, lets say that my file has one record and has a NULL right in the middle at position 80. My script is returning 160 as length and throwing out the NULL altogether. Your awk code is stopping at the NULL and returning the line length as 79. I need code to return all characters including the NULL values.
I was thinking instead of trying to get the actual line length I could go to the end of each line and retrieve the line position from there. I think that would be better but cannot find relevant code for that.
Thanks
 

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LEARN ABOUT OPENSOLARIS

lptest

lptest(1B)					     SunOS/BSD Compatibility Package Commands						lptest(1B)

NAME

       lptest - generate line printer ripple pattern

SYNOPSIS

       /usr/ucb/lptest [length [count]]

DESCRIPTION

       The  lptest  utility  writes the traditional ripple test pattern to the standard output. In 96 lines, the ripple test pattern prints all 96
       printable ASCII characters in each position. The ripple test pattern was originally created to test printers.  It is also useful for  test-
       ing terminals, driving terminal ports, debugging, and performing tasks that require a quick supply of random data.

       This command is obsolete.

OPTIONS

       length	 Specifies the length of the output line in characters. 79 characters is the default.

       count	 Specifies the number of output lines. 200 lines is the default. If  count is specified, length must also be specified.

EXIT STATUS

       The following exit values are returned:

       0	   Successful completion.

       non-zero    An error occurred.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWscplp 		   |
       +-----------------------------+-----------------------------+

SEE ALSO

       attributes(5)

SunOS 5.11							    9 Sep 1996								lptest(1B)
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